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Autologous transplantation gives encouraging results for young adults with favorable-risk acute myeloid leukemia, but is not improved with gemtuzumab ozogamicin.

Author(s): Fernandez HF, Sun Z, Litzow MR, Luger SM, Paietta EM, Racevskis J, Dewald G, Ketterling RP, Rowe JM, Lazarus HM, Tallman MS

Affiliation(s): Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL 33612, USA. hugo.fernandez@moffitt.org

Publication date & source: 2011-05-19, Blood., 117(20):5306-13. Epub 2011 Mar 17.

Publication type: Clinical Trial, Phase III; Randomized Controlled Trial; Research Support, N.I.H., Extramural

We report the results of a prospective, randomized phase 3 trial evaluating the use of gemtuzumab ozogamicin (GO) in an intensive consolidation approach in 657 patients 17-60 years of age. Patients in first complete remission (CR1) after cytarabine and standard- or high-dose daunorubicin induction received 2 cycles of consolidation with high-dose cytarabine followed by peripheral blood progenitor cell collection. The 352 patients who entered consolidation were randomized to receive GO (n = 132) or not (n = 138) and then proceeded to autologous hematopoietic cell transplantation (HCT). GO was given to 67 patients. Median follow-up was 50.9 months. Results of the intention-to-treat analysis demonstrated a 4-year disease-free survival (DFS) of 33.6% versus 35.9% (P = .54) and an overall survival (OS) of 41.3% versus 41.9% (P = .52) for those randomized to receive GO versus no GO, respectively. Patients with favorable- and intermediate-risk acute myeloid leukemia (AML) treated with high-dose daunorubicin and autologous HCT had 4-year DFS rates of 60% and 40% and OS rates of 80% and 49.3%, respectively. For younger AML patients in CR1, autologous HCT should be considered in favorable- and intermediate-cytogenetic risk patients who do not have an allogeneic donor. The addition of a single dose of GO in this setting did not improve outcomes.

Page last updated: 2011-12-09

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